6533b832fe1ef96bd129a179
RESEARCH PRODUCT
Radiation hardness studies of CdTe and for the SIXS particle detector on-board the BepiColombo spacecraft
Juhani HuovelinHans AnderssonJ. AhorantaRami VainioAri VirtanenM. UunilaHeikki Kettunensubject
010302 applied physicsPhysicsNuclear and High Energy PhysicsProton010308 nuclear & particles physicsbusiness.industryDetector7. Clean energy01 natural sciencesCadmium telluride photovoltaicsParticle detectorSemiconductor detectorSemiconductor13. Climate action0103 physical sciencesOptoelectronicsIrradiationbusinessInstrumentationRadiation hardeningdescription
Abstract We report of the radiation hardness measurements that were performed in the developing work of a particle detector on-board ESA's forthcoming BepiColombo spacecraft. Two different high- Z semiconductor compounds, cadmium telluride (CdTe) and mercuric iodide (HgI 2 ), were irradiated with 22 MeV protons in four steps to attain the estimated total dose of 10 12 p / cm 2 for the mission time. The performance of the detectors was studied before and after every irradiation with radioactive 55 Fe source Mn K α 5.9 keV emission line. We studied the impact of the proton beam exposure on detector leakage current, energy resolution and charge collection efficiency (CCE). Also the reconstructive effect of annealing on radiation induced damage was tested for CdTe detector.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-07-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |